I checked my bank account today and I can see that the balance transfer from my Tickmill UK trading account has been received. So, it took about 30 min for Tickmill to process the request, and two days for it to reach my bank. I have no problem with that.
Overall, I'm satisfied with Tickmill UK. Their customer support is terrible, but the brokerage service works as advertised. I have found the low spread, commission based 'Pro' account to be exactly what I am looking for, as the smaller spreads make it easier for me to use tight stops when trading H1 movements. Next week I will be moving my trading balance over to my Pro account, as I feel my 'due dilligence' of the broker is complete.
While I'm happy to answer any questions people may have, I consider the review finished. I won't be updating the thread further unless something changes.
One final note for anyone who has read this review and is considering a Pro account with Tickmill. When you open your account, you will be asked if you have an Introducing Broker (IB). If you do, and you enter that broker's IB number, you get a permanent 5% discount on your commission payments for that account.
Now, I looked high and low for an Introducing Broker so I could get that 5% discount, as anything that reduces transaction costs is a good thing. For whatever reason, I couldn't find one, which sucks. Now that I've decided to stay with Tickmill UK, I've also registered as an Introducing Broker, so if anyone wants an IB number for the discounted commissions, feel free to message me.
Full disclosure: IBs are 'incentivised' to recommend Tickmill. You can read all the details here. They actually want IBs to push the Classic account - the rewards for the Pro account are far lower - but you should still be aware of the potential conflict of interest associated with my offer of an IB number.
Regardless, I hope anyone considering Tickmill UK - especially new traders - finds this review helpful.